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Inner Tubes. Probably a dumb question but….

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  • March 24, 2017 at 7:22 pm #26931
    road

    For 25 mm tyres I can fit either a 18-25mm inner OR a 25-32mm inner.  (Sourcing from Decathalon)

     

    Does it matter? Any advantage/disadvantage involved?

     

    Yes I really am this new to cycling. Embarassing at 45……

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Viewing 8 replies - 1 through 8 (of 8 total)
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  • March 26, 2017 at 7:55 pm #889943
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    Man of Lard

    I run 28mm tyres – actually

    I run 28mm tyres – actually on the bike I have 18/28 tubes. In my pocket I carry 28/45s…

    Why? Because I mostly ride with chaps who apparently enjoy hammering their prostates on 23mm tyres pumped up to infinity PSI… One of them keeps puncturing but never carries a spare tube, patches or a pump & I got fed up providing tubes that he always promised to replace (still waiting on any never mind all). Now I can’t provide him with a tube so either someone else can, or he’s on the walk/call of shame.

    Forgetting once is forgivable, twice starts to look careless, thrice is extracting the weewee.

    March 25, 2017 at 8:33 pm #889941
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    matthewn5

    Doesn’t seem to matter. I

    Doesn’t seem to matter. I never check the size of the tubes and they still work in 25s on wide rims 😉

    March 25, 2017 at 5:49 pm #889939
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    Anonymous

    I’m starting to lean towards

    I’m starting to lean towards fitting 28mm tyres anyway.

     

    Which kind of makes the entire question pointless.

     

    Sorry 🙁

    Thanks for the advice anyway.

     

    EDIT: Should add I’m at the “I used to be indecisive, but now I’m not so sure” stage of buying a bike.

    March 25, 2017 at 5:45 pm #889937
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    mike the bike

     

     

    I’d go for the larger size even though there is a small risk of snagging it during fitting.  I reckon that the smaller one will be inflated to its maximum size and stretched to the limit, a bit like a balloon.  This means it will puncture more easily than the larger one that should be more relaxed.

    Well, that’s my theory anyway ……

    March 25, 2017 at 4:41 pm #889935
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    Spangly Shiny

    On the other hand if you are

    On the other hand if you are fitting your 25mm tyres onto a pair of  newer, wider rims the actual measured width of the tyre will be up to 29mm. In that case a 25-32mm tube may be considered more appropriate, especially on a tubeless ready rim where the well is deeper.

    March 25, 2017 at 8:25 am #889933
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    Anonymous

    Thanks both
    Thanks both

    March 25, 2017 at 7:53 am #889931
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    StraelGuy

    Agreed, much easier to fit.

    Agreed, much easier to fit.

    March 24, 2017 at 8:36 pm #889929
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    Nat Jas Moe

    In my experience I find that

    In my experience I find that the 18-25 are esier to fit than the 25-32 as the larger inner tube I find is easier to pinch when fitting. So I would go for the 18-25, which is what I use as I have 25mm tyres.

     

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